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DK292286D0 - MEASURING DEVICE FOR MEASURING CHARACTERISTIC CHARACTERISTICS OF RED BLOOD BODIES - Google Patents

MEASURING DEVICE FOR MEASURING CHARACTERISTIC CHARACTERISTICS OF RED BLOOD BODIES

Info

Publication number
DK292286D0
DK292286D0 DK292286A DK292286A DK292286D0 DK 292286 D0 DK292286 D0 DK 292286D0 DK 292286 A DK292286 A DK 292286A DK 292286 A DK292286 A DK 292286A DK 292286 D0 DK292286 D0 DK 292286D0
Authority
DK
Denmark
Prior art keywords
foil
red blood
chamber
measuring
electrode
Prior art date
Application number
DK292286A
Other languages
Danish (da)
Other versions
DK164380B (en
DK164380C (en
DK292286A (en
Inventor
Helmut Jahn
Waldemar Karger
Original Assignee
Hoechst Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of DK292286D0 publication Critical patent/DK292286D0/en
Publication of DK292286A publication Critical patent/DK292286A/en
Publication of DK164380B publication Critical patent/DK164380B/en
Application granted granted Critical
Publication of DK164380C publication Critical patent/DK164380C/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
    • G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/487—Physical analysis of biological material of liquid biological material
    • G01N33/49—Blood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/01—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials specially adapted for biological cells, e.g. blood cells
    • G01N2015/012—Red blood cells

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Biochemistry (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Dispersion Chemistry (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Ecology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Alcoholic Beverages (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Prostheses (AREA)

Abstract

The deformability measurement chamber is subdivided by a foil into two chamber spaces. The foil has a passage opening, the diameter of which is smaller than the diameter, at rest, of a red blood corpuscle. A static pressure gradient exists between the two chamber spaces, so that a flow takes place from one chamber space to the other. In the region of the passage opening there is situated on each side of the foil an electrode, which is connected to an alternating voltage source. In order to achieve a measurement signal which is approximately one order of magnitude greater, at a given alternating voltage frequency, a current-measuring operational amplifier is disposed in the connecton of one electrode to the voltage source.
DK292286A 1985-06-21 1986-06-20 MEASURING DEVICE FOR MEASURING CHARACTERISTIC CHARACTERISTICS OF RED BLOOD BODIES DK164380C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853522186 DE3522186A1 (en) 1985-06-21 1985-06-21 MEASURING DEVICE FOR MEASURING THE DEFORMITY OF RED BLOOD BODIES
DE3522186 1985-06-21

Publications (4)

Publication Number Publication Date
DK292286D0 true DK292286D0 (en) 1986-06-20
DK292286A DK292286A (en) 1986-12-22
DK164380B DK164380B (en) 1992-06-15
DK164380C DK164380C (en) 1992-11-16

Family

ID=6273801

Family Applications (1)

Application Number Title Priority Date Filing Date
DK292286A DK164380C (en) 1985-06-21 1986-06-20 MEASURING DEVICE FOR MEASURING CHARACTERISTIC CHARACTERISTICS OF RED BLOOD BODIES

Country Status (11)

Country Link
US (1) US4797606A (en)
EP (1) EP0209711B1 (en)
JP (1) JPS62182654A (en)
AT (1) ATE61669T1 (en)
BR (1) BR8602869A (en)
DE (2) DE3522186A1 (en)
DK (1) DK164380C (en)
ES (1) ES8706962A1 (en)
FI (1) FI84403C (en)
NO (1) NO166382C (en)
PT (1) PT82787B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2685544B2 (en) * 1988-11-11 1997-12-03 株式会社日立製作所 Blood filter, blood test method, and blood test apparatus
WO1992015878A1 (en) * 1991-03-04 1992-09-17 Kensey Nash Corporation Apparatus and method for determining deformability of red blood cells of a living being
US5532139A (en) * 1992-10-30 1996-07-02 Micro-Med, Inc. Micro lysis-analysis process to measure cell characteristics and diagnose diseases
US5610027A (en) * 1992-10-30 1997-03-11 Micro-Med, Inc. Microphoto lysis-anlaysis process to measure cell characteristics
US5955295A (en) * 1992-10-30 1999-09-21 Micro-Med, Inc. Micro lysis-analysis process to measure cell characteristics and diagnose diseases
US5528133A (en) * 1994-07-21 1996-06-18 Powerpoint Technologies, Inc. Method and apparatus for determining the quality of a colloidal suspension
US8026102B2 (en) 2009-01-21 2011-09-27 Blaze Medical Devices, LLC Apparatus and method to characterize blood and red blood cells via erythrocyte membrane fragility quantification

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783247A (en) * 1971-08-30 1974-01-01 Coulter Electronics Particle analyzing system for coulter particle device and method
US3815022A (en) * 1972-10-04 1974-06-04 Gen Electric Method and apparatus for measuring small aspherical particles
US3812425A (en) * 1972-11-21 1974-05-21 Becton Dickinson Co Method and apparatus for determination of hematocrit
US3944917A (en) * 1973-08-13 1976-03-16 Coulter Electronics, Inc. Electrical sensing circuitry for particle analyzing device
CH614781A5 (en) * 1977-06-27 1979-12-14 Contraves Ag
DE2750447C2 (en) * 1977-11-11 1986-04-17 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen Device for measuring certain properties of particles suspended in a particle suspension
DE2828232C2 (en) * 1978-06-28 1986-04-17 Kernforschungsanlage Jülich GmbH, 5170 Jülich Device for determining the dielectric breakthrough and the size of particles having a membrane as an envelope
FR2484077B1 (en) * 1980-06-06 1984-07-06 Inst Nat Sante Rech Med METHOD AND DEVICE FOR MEASURING THE DEFORMABILITY OF LIVING CELLS, ESPECIALLY RED BLOOD CELLS
DE3215719C2 (en) * 1982-04-28 1984-01-26 Holger Dr. 5100 Aachen Kiesewetter Measuring device for measuring the deformability of red blood cells

Also Published As

Publication number Publication date
PT82787B (en) 1994-07-29
DK164380B (en) 1992-06-15
DK164380C (en) 1992-11-16
US4797606A (en) 1989-01-10
ES556231A0 (en) 1987-07-01
NO166382B (en) 1991-04-02
BR8602869A (en) 1987-02-10
ATE61669T1 (en) 1991-03-15
DE3522186A1 (en) 1987-01-02
EP0209711B1 (en) 1991-03-13
FI84403B (en) 1991-08-15
NO862469L (en) 1986-12-22
EP0209711A1 (en) 1987-01-28
FI862630L (en) 1986-12-22
ES8706962A1 (en) 1987-07-01
DK292286A (en) 1986-12-22
NO166382C (en) 1991-07-10
NO862469D0 (en) 1986-06-20
DE3678056D1 (en) 1991-04-18
FI84403C (en) 1991-11-25
PT82787A (en) 1986-12-29
FI862630A0 (en) 1986-06-19
JPS62182654A (en) 1987-08-11

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